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Phase change energy storage composite concrete block and preparation method thereof

A concrete block and phase change energy storage technology, which is applied to building materials and other directions, can solve the problems of large volume of phase change energy storage concrete, easy leakage of phase change materials, poor working time efficiency, etc., and achieves stable indoor temperature, cheap raw materials, Density improvement effect

Inactive Publication Date: 2017-04-26
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still the following problems: (1) The phase change energy storage concrete has a large volume and is easy to crack due to the internal stress caused by the temperature difference; (2) The concrete raw materials and molding process make its thermal conductivity poor, resulting in poor working timeliness; ( 3) Phase change materials are easy to leak at high temperature

Method used

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  • Phase change energy storage composite concrete block and preparation method thereof

Examples

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Effect test

Embodiment 1

[0035] A phase-change energy storage composite concrete block, comprising a concrete matrix 1; two cavities 2 are symmetrically arranged inside the concrete matrix 1, and the inner walls of the cavities 2 are covered with a phase-change coating 3, and the cavities 2 is filled with a phase change material layer 4, and two feed ports 5 and one air outlet 6 are provided between the concrete matrix 1 and the cavity 2;

[0036] The volume of the phase change material layer 4 is 60% of the volume of the cavity 2 .

[0037] The concrete matrix 1 is made of the following raw materials in parts by weight: 3.0 parts of cement, 10.0 parts of iron lumps, 3.0 parts of iron filings, 0.5 parts of steel fibers, 0.05 parts of water reducing agent and 1 part of water;

[0038] The feed inlet 5 and the air outlet 6 are made of the following raw materials in parts by weight: 4.0 parts of cement, 2.0 parts of iron filings, 0.5 parts of phenolic resin glue, 0.2 parts of water reducing agent and 1 p...

Embodiment 2

[0053] A phase-change energy storage composite concrete block, comprising a concrete matrix 1; two cavities 2 are symmetrically arranged inside the concrete matrix 1, and the inner walls of the cavities 2 are covered with a phase-change coating 3, and the cavities 2 is filled with a phase change material layer 4, and two feed ports 5 and one air outlet 6 are provided between the concrete matrix 1 and the cavity 2;

[0054] The volume of the phase change material layer 4 is 75% of the volume of the cavity 2 .

[0055] The concrete matrix 1 is made of the following raw materials in parts by weight: 2.0 parts of cement, 8.0 parts of iron block, 8.0 parts of iron filings, 1.0 part of steel fiber, 0.1 part of water reducing agent and 1 part of water;

[0056] The feed inlet 5 and the air outlet 6 are made of the following raw materials in parts by weight: 3.0 parts of cement, 3.0 parts of iron filings, 0.8 parts of phenolic resin glue, 0.1 part of water reducing agent and 1 part of...

Embodiment 3

[0071] A phase-change energy storage composite concrete block, comprising a concrete matrix 1; two cavities 2 are symmetrically arranged inside the concrete matrix 1, and the inner walls of the cavities 2 are covered with a phase-change coating 3, and the cavities 2 is filled with a phase change material layer 4, and two feed ports 5 and one air outlet 6 are provided between the concrete matrix 1 and the cavity 2;

[0072] The volume of the phase change material layer 4 is 90% of the volume of the cavity 2 .

[0073] The concrete matrix 1 is made of the following raw materials in parts by weight: 1.5 parts of cement, 6.0 parts of iron lumps, 8.0 parts of iron filings, 1.5 parts of steel fibers, 0.15 parts of water reducing agent and 1 part of water;

[0074] The feed inlet 5 and the air outlet 6 are made of the following raw materials in parts by weight: 2.0 parts of cement, 4.0 parts of iron filings, 1.0 part of phenolic resin glue, 0.05 part of water reducer and 1 part of wa...

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Abstract

A phase change energy storage composite concrete block comprises a concrete substrate. Two cavities are symmetrically formed in the concrete substrate. The inner walls of the cavities are covered with phase change coatings. The cavities are filled with phase change material layers. Two feed inlets and an air outlet are formed between the concrete substrate and the cavities. The invention further discloses a preparation method of the block. The phase change energy storage composite concrete block is compact in structure and good in heat conduction performance, it can still be ensured that the phase change energy storage advantage of phase change materials is achieved under the condition that outdoor temperature greatly change, energy saving and heat preservation are achieved, and the indoor temperature is stable and comfortable; the volume of the phase change material layers is 60-90 % of that of the cavities, concrete cracking caused by volume change in the phase change process can be prevented, and the work performance of the block is remarkably improved.

Description

technical field [0001] The invention relates to the field of building technology, in particular to a phase-change energy storage composite concrete block and a preparation method thereof. Background technique [0002] With the development of economic construction, the demand and dependence of human society on energy are increasing day by day, and the shortage of energy supply has become an important factor restricting economic development, while the crisis of energy depletion and environmental pollution have attracted more and more attention. Improving energy efficiency and developing renewable energy has become an important issue for human society. [0003] With the large-scale construction of cities and towns, the problems of high consumption, high investment and low income in the construction industry have become increasingly prominent. At present, China is already the largest producer and consumer of building materials in the world. The output of major building material...

Claims

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Application Information

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IPC IPC(8): E04C1/40C04B28/04C04B41/48
CPCC04B28/04C04B41/009C04B41/5001C04B2201/32C04B2201/50E04C1/40C04B14/34C04B14/48C04B2103/302C04B24/302C04B41/4803
Inventor 宫晨琛刘浩吴波芦令超程新
Owner UNIV OF JINAN
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